Precautions for Correct Use
The contents of operation log files cannot be checked on the Controller. On a computer, open
the file with a text editor or change the delimiter characters to semicolons (;) with spreadsheet
software.
10-4-2
Operation Log Format
• The operation log is stored in a file indicating the date and time as follows in the directory specified
as the save destination.
YYYY-MM-DD_HH-MM-SS.log (example: 2012-08-20_12-00-00.log)
- The date and time shown in the file name is the date and time at which the log file was created.
- The maximum size for a log file is about 100 KB. If a log file is larger than 100 KB, the log is written
into a new file from the first record over 100 KB.
- When the log is stopped, then started again, a new log file is created.
- Also during operation log execution, if the save destination directory setting is changed, at that
point in time, a new log file is created in the new save destination.
- Use spreadsheet program or other spreadsheet software to open the log file. If the characters are
corrupted, set the character code to UTF-8 with the BOM.
• Basically, information is saved when the API (application program interface) is executed. The infor-
mation for one piece of API information is written into the log file as one record.
The format for each record that is written to the log file is as follows: The four data items, the execu-
tion date and time, user name, input information, and output information, are delimited with semico-
lons (;). At the end of the record, a line feed (CR+LF) is entered.
(Execution date and time); (user name); (input information); (output information) [LF+CR]
Examples:
2012/08/20 12:00:00;user0;SetSystemData,"XX","YY","ZZ";0
2012/08/20 12:00:01;user0;GetSystemData,"XX","YY";0,"ZZ"
Execution date and time The date and time at which this API was executed
Username The name of user that is currently logged in.
If no one is logged in, the character string no login is entered.
Input information The API name is followed by supplemental information (mostly API ar-
guments), delimited with commas (,).
Output information AThe API return value is followed by supplemental information (mostly
information gotten by the API), delimited with commas(,).
For the operation log input information written in the operation log file, refer to A-13 Operation log
input information list on page A - 39.
10 Advanced Usage
10 - 45
FH/FHV Series Vision System User’s Manual (Z365-E1)
10-4 Recording the Operation
History [Operation Log]
10
10-4-2 Operation Log Format
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